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Finding the Fourth Proportional to 228,263.74, 315,013.24 and 126,287.44

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Solution

The fourth proportional to 228,263.74, 315,013.24 and 126,287.44 is: 174,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,263.74 : 315,013.24 = 126,287.44 : x
  2. Step 2: Convert to fraction form
    228,263.74/315,013.24 = 126,287.44/x
  3. Step 3: Cross multiply
    228,263.74x = 315,013.24 × 126,287.44
  4. Step 4: Simplify right side
    228,263.74x = 39,782,215,645.71
  5. Step 5: Solve for x
    x = 39,782,215,645.71/228,263.74
  6. Step 6: Final answer
    x = 174,281.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.